Posted by Dave in Over the last few years, ponds have become increasingly popular landscape features in many home lawns and gardens. Before designing any water feature, you should consider the maintenance associated with filtering and clearing debris. Another major consideration is the amount of electricity used by the pond pump, often on a 24/7 basis.
Pond pumps are re-circulating and most often are submersible. Pond pumps are the heart of the pond and should be chosen with care.
Pond, fountain and waterfall pumps have to be made for continuous duty (as opposed to a Sump Pump, for example, which only runs intermittently).
Energy efficiency and durability are very important because pond pumps have to run continuously for many months. The savings that are realized by buying a low price pond pump could evaporate quickly through higher energy bills. Magnetic drive pond pumps are often a good choice because they are energy efficient, compact and durable.
The next consideration is the size of the pump needed to power the water feature of the pond. Pond pumps are rated by gallons per hour (gph) or gallons per minute (gpm) of water produced at various heights.
The pump you choose should be able to circulate at least half of the volume of pond water every hour. This means, for example, that a pond that holds 2,000 gallons should be powered at a minimum by a 1,000-gph pump. But if a waterfall or pond filter will also be powered with the pump, then the height and width of the waterfall and/or the flow rate of the pond filter have to be taken into consideration and the pump size increased accordingly.
How much electricity would a 1,000 gallon-per-minute pump use? A typical pump used to power this amount of water would be about 75 watts, 120 volts. Dividing watts by 1,000 and multiplying this number by 24 hours per day x 30 days per month = 54 kilowatt-hours (kWh). If your kWh charge is 7 cents, then this pump will cost about $3.75 per month to operate.
As with many products, 54 kWh doesn’t sound like a lot, nor does $4 a month. However, this example does not describe a large pond, nor does it include additional pumps for waterfalls and filters. As the diameter of the pond increases, the volume expands exponentially, so be aware of how quickly electricity can increase.
Source: www.watergarden.org
A CHICK THAT WILL GROW INTO A COCK CAN BE SPOTTED THE VERY DAY IT HATCHES.
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